• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)

Head gasket--might as well?


Jedi Warrior
Well, I sent my rocker assembly out to the left coast 'cause Doc told me to. And since I have the head loosened I figured I may as well change out the gasket if it only involves a simple lifting of the head, changing the gasket and reseating the head. Any suggestions would be quickly considered.

tony barnhill

Great Pumpkin - R.I.P
Yep, Payen....While you're there - how are the side cover gaskets?


Jedi Warrior
Now stop that!! I'll be in tdskip's shoes in no time here. I hadn't thought about them, pretty soon I'll be changin light bulbs again. I've never been this far down into an engine, is this a simple "lift and replace" deal? And where do the donut downpipe gaskets go?


Darth Vader
Country flag
Just remember when your reinstalling the head keep your fingers out of the way of the studs especialy the short ones. I lost my right ring finger nail while sliding the head down the long studs with my finger over the hole for one of the short studs. Kinda hurt.


Senior Member
19_again said:
And where do the donut downpipe gaskets go?

Those are the gaskets that go between your exhaust manifold and the exhaust pipes leading back from the engine. A word of caution - this can easily turn into a BIG DEAL operation, especially if it's been a long time since these gaskets were installed. The six nuts that have to be removed are often rusted and frozen in place. If you twist one or more off (i.e., snap the bolt), you'll probably have to remove the exhaust manifold (which will also entail removing the carbureators, etc.) and have a machine shop put in new bolts.


Jedi Warrior
I must have replaced those downpipe gaskets when I put in the new peco exhaust system. I took off the manifold and took the bench grinder brush to it just to clean it up a little.


Great Pumpkin
Country flag
And a "proceedure" for the block: stuff the bores with paper towels. edge to edge. NO junk/swarf/dirt to be allowed down there to get between the pistons and the bore! Both head and block surfaces need to be really-REALLY clean and free of any old gasket or deposits. Hospital clean, Get a can of Permatex HiTack to spray a LIGHT coat on the new gasket. Assembly is reverse of above... don't forget to carefully remove the towels. /bcforum/images/%%GRAEMLIN_URL%%/wink.gif
Similar threads
Thread starter Title Forum Replies Date
Csarneson Head Gasket Seal Austin Healey 6
R Cylinder head gasket BJ8 Austin Healey 32
B TR4/4A Head gasket won't lay flat Triumph 13
Michael Oritt Head gasket question Austin Healey 17
Got_All_4 General TR Payen brand head gasket sets what's the difference Triumph 10
Simmo TR2/3/3A Head Gasket Triumph 4
KVH General Tech Head Gasket Triumph 10
RJS General TR Head Gasket Test Fit Triumph 5
D TR2/3/3A head gasket... which way up?! Triumph 8
KVH TR4/4A Blown Head Gasket? Triumph 12
T TR4/4A Head gasket sealer question Triumph 7
T TR4/4A How to prep block to reinstall head for composite gasket Triumph 3
T TR4/4A Composite vs cooper head gasket with Randall's "trick" Triumph 6
T TR4/4A This head gasket doesn't look right to me - cooling passanges partially blocked? Triumph 18
H TR4/4A Head Gasket Issue Triumph 4
Got_All_4 TR2/3/3A What direction does the head gasket go? Triumph 4
T TR4/4A Best head gasket for a 4A? Triumph 12
DornTRoriginal TR2/3/3A TR3 Head Gasket Questions Con't Triumph 3
B Victoria British Head Gasket Austin Healey 6
T TR4/4A Seems like a bad cylinder head or head gasket but what do you think? Triumph 19
G Payen XK engine head gasket -- which side is the top? Jaguar 2
KVH General TR Cylinder Head Gasket: Stay Simple? Triumph 9
S Recommendation on Head Gasket? Austin Healey 14
S Tolerance for head gasket Austin Healey 10
RickB MGB Bought 1980 MGB and got it home - head gasket? MG 15
Gliderman8 TR6 Question on installing new head gasket Triumph 2
RedTR3 TR2/3/3A How to check for cylinder-to-cylinder head gasket leak Triumph 7
B Experience with Cometic Head Gasket for BN2? Austin Healey 8
S SaxMan's Cylinder Head Overhaul / Head Gasket Replacement Thread Spridgets 135
M TR2/3/3A Head gasket leaking in two places Triumph 13
S TR2/3/3A head gasket Triumph 5
AngliaGT General MG MGB GT Head Gasket - What do I need? MG 3
G TR2/3/3A TR3/TR4 Cylinder Head Gasket SElection Triumph 2
B MGB 1972 MGB, Head Gasket replaced...runs very poorly. MG 30
O HEALEY 100 Head Gasket Gone ? Austin Healey 10
J Blown head gasket in 3 min. a new record! Triumph 14
Lukens TR2/3/3A TR3 blown head gasket? Triumph 39
L 1275 Head Gasket Spridgets 7
M persistand head gasket leak 1959 mg 1600 MG 3
RedTR3 TR2/3/3A TR3 Head Gasket [Again] Triumph 4
RedTR3 TR2/3/3A TR3 Head Gasket Triumph 6
DNK The Head Gasket Triumph 27
Boink Head gasket recommendations... Spridgets 13
Morris Blew another head gasket... Spridgets 15
Stewart I sure hope its just a head gasket MG 8
6 MGB 79 MGB Head Gasket Screwup MG 7
D Head Gasket Triumph 31
M Head gasket use sealant or not Austin Healey 7
M Head Gasket Orientation Austin Healey 2
M Head gasket replacement. Austin Healey 6

Similar threads